README.md

ImputeDB

ImputeDB is a SQL database which automatically imputes missing data on-the-fly.
Users can issue SQL queries over data with NULL values and ImputeDB will use a regression model to fill in the missing values during the execution of the query.
Designed to enable exploratory analysis of survey data, ImputeDB removes the cost of performing imputation manually, allowing users to get a quick and accurate view of their data.

Building and Running

To build ImputeDB, run:

cd simpledb; ant

To create a database from the demo collection of CSV files, run:

./imputedb load --db demo.db demo_data/*

This creates three tables:

demo: demographics data from the CDC

labs: laboratory data from the CDC

exams: physical examination data from the CDC

and places their serialized representations in the demo.db folder,
along with a catalog describing the table schemas..

Then, to query the database, run:

./imputedb query --db demo.db

This launches the ImputeDB interpreter with an --alpha 0.0 parameter
as a default, which
means ImputeDB will optimize for data quality. You can modify this
by calling the interpreter with the --alpha <double> option.